An explosion-proof distance measuring device

Abstract

The utility model discloses an explosion-proof distance measuring device, which relates to the technical field of distance measuring instruments. The utility model comprises a device body, wherein an outer wall of the device body is rotatably connected with an adjusting plate, an outer wall of the adjusting plate is fixedly connected with a mounting rail, and an outer wall of the mounting rail is clamped and connected with an explosion-proof distance measuring instrument. By arranging the adjusting plate, when the explosion-proof distance measuring instrument is used for daily distance measuring, in order to improve the flatness of the distance measuring instrument placed on the device and prevent the device from being unevenly contacted with the ground, which causes the explosion-proof distance measuring instrument to deviate in the measuring direction, a knob can be rotated to drive a threaded slider to slide along the inner wall of a slide groove through the rotation of a threaded rod, and the sliding of the threaded slider drives a gear to perform a rotational movement along the outer wall of the device through the connection of a toothed plate, and the rotation of the gear drives the explosion-proof distance measuring instrument to perform an angle leveling movement through the rotation connection of the adjusting plate, so as to achieve the effect of improving the accuracy of measuring data of the explosion-proof distance measuring instrument in different ground environments.

Description

Technical Field

[0001] The utility model relates to the technical field of distance measuring instruments, in particular to an explosion-proof distance measuring device. Background Art

[0002] An explosion-proof distance meter is a device used to measure distance. It has explosion-proof performance and is suitable for measurement work in dangerous environments. With the continuous development of industrial technology, explosion-proof distance meters have been widely used in the petroleum, chemical, mining and other industries. The explosion-proof distance meter uses special materials and designs to enable it to operate in flammable and explosive environments without causing fire or explosion. It usually has important components such as explosion-proof casing, explosion-proof circuit and explosion-proof sensor to ensure that it will not generate sparks or high temperatures during normal operation.

[0003] For example, announcement number CN216387374U discloses an explosion-proof laser ranging device, comprising: a laser ranging module and a shell for accommodating the laser ranging module; the shell comprises an explosion-proof shell and a front cover connected to the explosion-proof shell, and the laser ranging module is connected to the front cover; a light-transmitting window is provided on the shell, and a light-transmitting plate is fixed on the light-transmitting window, so that the laser emitted by the laser ranging module can reach the outside of the shell through the light-transmitting plate. The utility model replaces the traditional ultrasonic radar sensor module with a laser radar ranging module, so that the measurement result of the explosion-proof laser ranging device is not affected by the surrounding environment, thereby ensuring the reliability of the measurement accuracy. At the same time, since the laser radar ranging module is fixed in the shell, and the shell is in a flameproof form, it can meet the relatively complex safety standards and usage requirements. In addition, since the shell is small in size and has strong anti-interference ability, it can meet the needs of diversified choices.

[0004] However, although this explosion-proof distance measuring device can provide better explosion-proof use for the distance meter when in use, when the distance meter is installed and used on the device, the leveling effect of the distance meter on the outer wall of the device is not high, so that when the device contacts the ground with different road conditions, the contact part between the ground and the device will be uneven, causing the distance meter to deviate, thereby reducing the accuracy of the distance meter measurement data.

[0005] Therefore, in view of this, the existing structural deficiencies are studied and improved, and an explosion-proof distance measuring device is proposed. Utility Model Content

[0006] The utility model aims to provide an explosion-proof distance measuring device to solve the problem in the above background technology that the leveling effect of the distance measuring device on the outer wall of the device is not high.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an explosion-proof ranging device, comprising a device body, an outer wall of the device body being rotatably connected with an adjustment plate, an outer wall of the adjustment plate being fixedly connected with a mounting rail, an outer wall of the mounting rail being snap-connected with an explosion-proof ranging instrument, an outer wall of the device body being rotatably connected with a threaded rod, one end of the threaded rod being fixedly connected with a knob, an outer wall of the threaded rod being threadedly connected with a threaded slider slidably connected with the outer wall of the device body, a sliding groove being provided at a connection position between the outer wall of the device body and the threaded slider, an outer wall of the threaded slider being fixedly connected with a toothed plate, an outer wall of the toothed plate being meshed with a gear rotatably connected with the outer wall of the device body, and a mounting groove being provided at a connection position between the outer wall of the explosion-proof ranging instrument and the mounting rail.

[0008] Furthermore, the outer wall of the mounting rail is fixedly connected to a connecting box, the outer wall of the explosion-proof rangefinder is fixedly connected to a connecting rod slidably connected to the outer wall of the connecting box, the outer wall of the connecting rod is snap-connected to a telescopic rod telescopically connected to the inner wall of the connecting box, the outer wall of the telescopic rod is fixedly connected to a telescopic rod slidably connected to the outer wall of the connecting box, the outer wall of the telescopic rod is sleeved with a spring fixedly connected to the outer wall of the connecting box, and one end of the spring is fixedly connected to a pull rod fixedly connected to one end of the telescopic rod.

[0009] Furthermore, the outer wall profile of the mounting rail is in a "U" shape, and the mounting grooves are symmetrically arranged on both sides of the explosion-proof rangefinder.

[0010] Furthermore, the rotation center of the gear and the rotation center of the adjustment plate are on the same horizontal plane, and the rotation center of the gear is fixedly connected to the adjustment plate via a rotating shaft.

[0011] Furthermore, the connection boxes are symmetrically arranged on both sides of the explosion-proof rangefinder.

[0012] Furthermore, the connection portion between the connecting clamp rod and the telescopic clamp rod is an inclined surface.

[0013] Furthermore, two groups of telescopic rods are provided, and the positions of the two groups of telescopic rods are distributed symmetrically with respect to the central axis of the pull rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model sets an adjustment plate. When the explosion-proof rangefinder is used for daily distance measurement, in order to improve the flatness of the rangefinder placed on the device and prevent the device from being unevenly in contact with the ground, which causes the explosion-proof rangefinder to deviate in the measuring direction, the knob can be turned to drive the threaded slider to slide along the inner wall of the slide groove through the rotation of the threaded rod. The sliding of the threaded slider drives the gear to rotate along the outer wall of the device through the connection of the toothed plate. The rotation of the gear drives the explosion-proof rangefinder to perform angle leveling movement through the rotation connection of the adjustment plate, thereby improving the accuracy of the explosion-proof rangefinder measuring data in different ground environments;

[0016] 2. The utility model provides a connecting rod. When the explosion-proof rangefinder needs to be snap-fitted and installed with the device, the rangefinder can be slid into the outer wall of the mounting rail through the connection of the mounting groove, and the rangefinder can be inserted into the connecting box through the connection of the connecting rod. When the connecting part of the connecting rod and the telescopic rod is an inclined surface, the telescopic rod and the spring are driven to perform an extrusion movement until the connecting part of the connecting rod and the telescopic rod is a plane, which drives the telescopic rod to snap-fit ​​and fix the connecting rod, thereby achieving the effect of improving the convenience of snap-fit ​​installation of the explosion-proof rangefinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the distance measuring device;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the distance measuring device in another direction;

[0019] Figure 3 It is a schematic diagram of the connection structure between the tooth plate and the gear;

[0020] Figure 4 It is a schematic diagram of the connection structure between the connecting rod and the telescopic rod.

[0021] In the figure: 1. Device body; 2. Adjustment plate; 3. Mounting rail; 4. Explosion-proof rangefinder; 5. Threaded rod; 6. Knob; 7. Threaded slider; 8. Slide groove; 9. Tooth plate; 10. Gear; 11. Mounting groove; 12. Connection box; 13. Connection rod; 14. Telescopic rod; 15. Telescopic rod; 16. Spring; 17. Pull rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1: Figure 1-Figure 3 As shown, an explosion-proof distance measuring device includes a device body 1, an outer wall of the device body 1 is rotatably connected with an adjustment plate 2, an outer wall of the adjustment plate 2 is fixedly connected with a mounting rail 3, an outer wall of the mounting rail 3 is snap-connected with an explosion-proof distance measuring instrument 4, an outer wall of the device body 1 is rotatably connected with a threaded rod 5, one end of the threaded rod 5 is fixedly connected with a knob 6, an outer wall of the threaded rod 5 is threadedly connected with a threaded slider 7 slidably connected to the outer wall of the device body 1, a sliding groove 8 is provided at a connection position between the outer wall of the device body 1 and the threaded slider 7, an outer wall of the threaded slider 7 is fixedly connected with a toothed plate 9, an outer wall of the toothed plate 9 is meshed with a gear 10 rotatably connected to the outer wall of the device body 1, and a mounting groove 11 is provided at a connection position between the outer wall of the explosion-proof distance measuring instrument 4 and the mounting rail 3.

[0024] Furthermore, the outer wall profile of the mounting rail 3 is in a "U" shape, and the mounting grooves 11 are symmetrically arranged on both sides of the explosion-proof rangefinder 4, which is beneficial to pre-positioning and installing the explosion-proof rangefinder 4 on the device through the "U" shape of the outer wall profile of the mounting rail 3.

[0025] Furthermore, the rotation center of the gear 10 and the rotation center of the adjustment plate 2 are on the same horizontal plane, and the rotation center of the gear 10 is fixedly connected to the adjustment plate 2 through a rotating shaft. The adjustment plate 2 forms a rotating structure with the device body 1 through the tooth plate 9 and the gear 10, which is conducive to the sliding of the tooth plate 9 through the connection of the gear 10, driving the adjustment plate 2 to rotate along the outer wall of the device body 1, and driving the explosion-proof rangefinder 4 to perform an angle leveling movement, thereby achieving the effect of improving the accuracy of measuring data by the explosion-proof rangefinder 4 in different ground environments.

[0026] Embodiment 2: Figure 1 , Figure 2 and Figure 4As shown, an explosion-proof distance measuring device proposed by the utility model, compared with the first embodiment, as another embodiment of the utility model, the outer wall of the mounting rail 3 is fixedly connected with a connecting box 12, the outer wall of the explosion-proof distance measuring instrument 4 is fixedly connected with a connecting clamping rod 13 which is slidably connected to the outer wall of the connecting box 12, the outer wall of the connecting clamping rod 13 is clamped and connected with a telescopic clamping rod 14 which is telescopically connected to the inner wall of the connecting box 12, the outer wall of the telescopic clamping rod 14 is fixedly connected with a telescopic rod 15 which is slidably connected to the outer wall of the connecting box 12, the outer wall of the telescopic rod 15 is sleeved with a spring 16 which is fixedly connected to the outer wall of the connecting box 12, and one end of the spring 16 is fixedly connected with a spring 16 which is fixedly connected to one end of the telescopic rod 15 The pull rod 17, when working, is convenient for engaging and installing the explosion-proof rangefinder 4 with the device by setting the connecting clamp rod 13. The rangefinder can be slid into the outer wall of the mounting rail 3 through the connection of the mounting groove 11, and the rangefinder can be inserted into the connecting box 12 through the connection of the connecting clamp rod 13. When the connecting part of the connecting clamp rod 13 and the telescopic clamp rod 14 is inclined, the telescopic rod 15 and the spring 16 are driven to perform an extrusion movement until the connecting part of the connecting clamp rod 13 and the telescopic clamp rod 14 is flat, and the telescopic clamp rod 14 is driven to engage and fix the connecting clamp rod 13, so as to improve the convenience of the installation of the explosion-proof rangefinder 4.

[0027] Furthermore, the connection boxes 12 are symmetrically arranged on both sides of the explosion-proof distance meter 4 , which is beneficial to improve the installation stability of the distance meter on the mounting rail 3 .

[0028] Furthermore, the connecting portion between the connecting rod 13 and the telescopic rod 14 is inclined, which is conducive to conveniently engaging and installing the rangefinder.

[0029] Furthermore, two groups of telescopic rods 15 are provided, and the position distribution of the two groups of telescopic rods 15 is symmetrical about the central axis of the pull rod 17. The explosion-proof rangefinder 4 forms a snap-fit ​​structure with the mounting rail 3 through the connecting clamp rod 13 and the telescopic clamp rod 14, which is beneficial to the connection between the connecting clamp rod 13 and the telescopic clamp rod 14, and drives the explosion-proof rangefinder 4 to be snap-fitted and installed on the outer wall of the mounting rail 3, thereby achieving the effect of improving the convenience of snap-fitting installation of the explosion-proof rangefinder 4.

[0030] Working principle: When using this explosion-proof distance measuring device, first, when the explosion-proof distance measuring device 4 is used for daily distance measurement, in order to improve the flatness of the distance measuring device when placed on the device and prevent the device from being unevenly in contact with the ground, causing the explosion-proof distance measuring device 4 to deviate in the measuring direction, the knob 6 can be turned to drive the threaded slider 7 to slide along the inner wall of the slide groove 8 through the rotation of the threaded rod 5. The sliding of the threaded slider 7 is connected through the toothed plate 9 to drive the gear 10 to rotate along the outer wall of the device. The rotation of the gear 10 drives the explosion-proof distance measuring device 4 to perform angle leveling movement through the rotation connection of the adjustment plate 2, thereby achieving the effect of improving the accuracy of measuring data of the explosion-proof distance measuring device 4 in different ground environments.

[0031] Finally, when it is necessary to engage and install the explosion-proof rangefinder 4 with the device, the rangefinder can be slid into the outer wall of the mounting rail 3 through the connection of the mounting groove 11, and the rangefinder can be inserted into the connecting box 12 through the connection of the connecting rod 13. When the connecting part of the connecting rod 13 and the telescopic rod 14 is inclined, the telescopic rod 15 and the spring 16 are driven to perform an extrusion movement until the connecting part of the connecting rod 13 and the telescopic rod 14 is flat, and the telescopic rod 14 is driven to engage and fix the connecting rod 13, thereby achieving the effect of improving the convenience of engagement and installation of the explosion-proof rangefinder 4.

[0032] This is the working principle of this explosion-proof distance measuring device.

[0033] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. An explosion-proof distance measuring device, comprising a device body (1), characterized in that: The outer wall of the device body (1) is rotatably connected to an adjustment plate (2), the outer wall of the adjustment plate (2) is fixedly connected to a mounting rail (3), the outer wall of the mounting rail (3) is snap-connected to an explosion-proof distance meter (4), the outer wall of the device body (1) is rotatably connected to a threaded rod (5), one end of the threaded rod (5) is fixedly connected to a knob (6), the outer wall of the threaded rod (5) is threadedly connected to a threaded slider (7) slidably connected to the outer wall of the device body (1), a sliding groove (8) is provided at a connection position between the outer wall of the device body (1) and the threaded slider (7), the outer wall of the threaded slider (7) is fixedly connected to a toothed plate (9), the outer wall of the toothed plate (9) is meshed with a gear (10) rotatably connected to the outer wall of the device body (1), and a mounting groove (11) is provided at a connection position between the outer wall of the explosion-proof distance meter (4) and the mounting rail (3).

2. An explosion-proof distance measuring device according to claim 1, characterized in that: The outer wall of the mounting rail (3) is fixedly connected to a connection box (12); the outer wall of the explosion-proof rangefinder (4) is fixedly connected to a connection clamping rod (13) slidably connected to the outer wall of the connection box (12); the outer wall of the connection clamping rod (13) is snap-connected to a telescopic clamping rod (14) telescopically connected to the inner wall of the connection box (12); the outer wall of the telescopic clamping rod (14) is fixedly connected to a telescopic rod (15) slidably connected to the outer wall of the connection box (12); the outer wall of the telescopic rod (15) is sleeved with a spring (16) fixedly connected to the outer wall of the connection box (12); one end of the spring (16) is fixedly connected to a pull rod (17) fixedly connected to one end of the telescopic rod (15).

3. An explosion-proof distance measuring device according to claim 1, characterized in that: The outer wall profile of the mounting rail (3) is in a "U" shape, and the mounting grooves (11) are symmetrically arranged on both sides of the explosion-proof rangefinder (4).

4. The explosion-proof distance measuring device according to claim 1, characterized in that: The rotation center of the gear (10) and the rotation center of the adjustment plate (2) are located on the same horizontal plane, and the rotation center of the gear (10) is fixedly connected to the adjustment plate (2) via a rotating shaft.

5. The explosion-proof distance measuring device according to claim 2, characterized in that: The connection boxes (12) are symmetrically arranged on both sides of the explosion-proof distance meter (4).

6. An explosion-proof distance measuring device according to claim 2, characterized in that: The connection portion between the connecting clamp rod (13) and the telescopic clamp rod (14) is in the form of an inclined surface.

7. An explosion-proof distance measuring device according to claim 2, characterized in that: Two groups of telescopic rods (15) are provided, and the positions of the two groups of telescopic rods (15) are distributed symmetrically with respect to the central axis of the pull rod (17).

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